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(No Model.)

W. J. DENVER 8: W. W. SAWYBR.

CALL REGISTER FOR TBLEPHONES. No. 253.853. Patented Feb. 21,1882.

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N, PETERS. Phnlo-Lilhcgnphen Washington, D. c.

UNITED STATES PATENT OFFICE.

WILLIAM J. DENVER AND WILLARD \V. SAWYER, OF SPRINGFIELD, MASS.

CALL-REGISTER FOR TELEPHONES.

SPECIFICATION forming part of Letters Patent No, 253,853, dated February 21, 1882.

Application filed May 16, 1881.

T 0 all whom it may concern:

Be it known that we, WILLIAM J. DENVER and WILLARD W. SAWYER, citizens of the United States, residing at Springfield, in the county of Hampdcn and State of Massachusetts, have jointly invented new and useful Improvements in Telephonic Toll-Registers, of which the following is a specification.

This invention relates to the details of construction of devices to operate between the switch lever of a telephonic or other batterybell box and a registering apparatus thereon, the object being to provide devices to operate automatically by or through the act of putting a telephone or signaling apparatus into position or circuit to call another station, to record upon a proper device each call so made, so that at any time the instrument will show how many calls have been made through it.

In the drawings forming part of this specification, Figure 1 is a front elevation of a battery-bell box of ordinary form embodying our improvements. Fig. 2 is an elevation of the rear side of the device shown in Fig. 1. Fig. 3 is a side elevation of an ordinary magneto-box construoted according to ourinvention. Fig. 4: is a plan view of one of the wheels of the registering apparatus. Fig. 5 is a vertical section of the two wheels of the registering device. Fig. 6 is a view of the spring-dog, which is a part of said registering device.

Like letters refer to like parts in the several figures.

In the drawings, B is the front side of an ordinary battery -bell box. a a are switchlevers thereon. c is a dial. m or are pointers connected with a registering apparatus in the rear of dial 0. dis an arm secured to a stud, e, on one of levers a. c is a connection-post on B. t is a sliding bar, having on it a tooth, t". n is a gear-wheel. sis a second gear-wheel. o is a dog pivoted on gear a, and having an arm, n, thereon. h is the hooked end of the switch-lever of an ordinary magneto-box, D. 2 is a bar pivoted in box I). 3 is a connecting bar pivoted to the lever, on the end of which is hook it. 4 is a pawl pivoted to the end of bar 2. t is a ratchet-Wheel, in engagement with the teeth of which pawl 4: is held by a spring secured to bar 2, as shown.

(No model.)

line-wires, one of which is connected to stud c, and one of which is connected to post 0.

B, Fig.1, represents the front side of a telephonic battery-bell box, with its switch-levers a a. Upon said side of said box, or elsewhere, but in convenient proximity to one of lovers 0, weplace a registering apparatus, E, which consists of a dial, 0, suitably marked and lettered, the pointers no to, a gear-wheel, 8, upon whose hub pointer or is carried, and a gearwheel, it, upon whose hub'pointer a; is carried, and upon whose face next to gear 8 is pivoted a dog, o having an arm, n, reaching over the periphery of gear 8. The stud c, on one of levers a, passes through the side B of said box, and has secured to it one of line-wires 0, and an arm, (1. One end of arm cl points upwardly, and its other end reaches downward and obliquely, and engages in anotch in the upper edge ot'a sliding bar, 1', having a tooth, t", on its lower side. Said bar i has one end supported in an eyebolt, 6, in which it can slide, and its other end in a staple-like support, 7, in which it can slide and move vertically, and to its last-named end is secured the spring 5 one end of which is secured to the side B.

The operation ofthe above-described devices in causing the calls by said box to be registered on dial 0 is as follows: After the box has been put in communication with the main office of the system one of levers a is turned up, swinging arm d thereon, so that one end thereof will be in contact with post 0 and es tablish the connection of lines 0 0 through stud 0. At the sametime that arm cl goes to post cits lower end swings and slides bar t, and also presses it downward, carrying tooth i thereon against one of the teeth of the wheel a and slightly turning it. When lever to is carried back to the position shown in Fig. 1 arm (Z and bar t resume the position shown in Fig.2, ready for anothermovement. When gear 12 was turned, as just described, the pointer m was moved one space on the outer circle on dial 0, and will be so moved each time that lever a is turned up to make a connection. After gear a has been so operated upon a sufficient number of times to have caused it to make one revolution the dog o is brought around to the top of gear 12, as in Figs. 4 and 5, and in this position the succeeding downward movement of bar 2' brings the latter to bear upon the top of arm 0 and press it down, so that its lower edge engages with the teeth of gear 9, and as gear a now turns, as above described, gear 8 turns with it, carrying pointer 00 over one space on dial 0, and in so doing arm 11 is carried from under bar t as thelattermoves back and springs up again, actuated by a spring, as shown in Fig. 4. Thus one complete revolution of gear a and pointer 00 causes gear .9 and pointer 00 to move and to count one space on the inner circle of dial 0.

In the box D, Fig. 3, substantially the same registering device is used asis above described; but to adapt it to be operated by the lever which terminates in front in the hook it a ratchet-wheel, 2?, takes the place of gear a, and said wheel is turned intermittently by the pawl 4 on lever 2, which, through its connection with said lever on which hook it is by bar 3 is vibrated every time said boX is used, as follows:

When box D is not in circuit, or under the operation of a call, the telephone hangs upon hook it, keeping it down and the circuit open,

but when a call is made the telephone must be taken off from said hook. This lets hook it rise up, and in rising it actuates said devices so as to revolve wheel 15 one tooth, and when the telephone is replaced upon said hook pawl 4 rises up into position to again act as before.

Thus upon lines where a system of tolls exists for the use of telephonic or other electric signaling apparatus, a correct record is made automatically by our instruments by the simple act of using the instrument, showing how many calls have been made, all of which is indicated at sight upon the dial of the registering apparatus.

What we claim as our invention is- In a telephonic or other electric signaling apparatus, the combination, with the switchlever to, having the arm (1 secured thereto, and with theregistering apparatus E, ofthe notched bar 71, having the tooth i thereon and spring 6 substantially as set forth.

WILLIAM J. DENVER. l/VILLARD \V. SAWYER.

Witnesses:

H. A. CHAPIN, J. D. GARFIELD. 

